Buck Converter DC-DC 8-35V 12V to 7V 5A Step Down Module
- Input Range: 8 - 35V DC
- Output: 7V DC @ 5A (35W)
- Efficiency: > 94% Synchronous
Verified hardware engineered to withstand severe harmonic distortion, input surges, and rigorous continuous duty in test labs and industrial systems.
The industrial and academic landscape of the Nice Côte d’Azur metropolitan area—anchored by the world-renowned Sophia Antipolis technology park, Université Côte d’Azur, and a burgeoning cluster of marine electronics and aerospace enterprises—places demanding expectations on benchtop and laboratory DC power equipment. Unlike standard consumer electronics testing, the research and development happening along the French Riviera revolves around next-generation microelectronics, IoT wireless communications, satellite telecommunication subsystems, and marine automation.
As an established OEM/ODM factory operating since 2003, Varnix delivers specialized direct-to-enterprise manufacturing solutions that combine programmable precision bench power supplies, switching rectifiers, and ruggedized DC-DC converters designed to meet strict European harmonized standards (CE, Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU, and RoHS 2011/65/EU).
In the cleanrooms and RF calibration laboratories of Nice, power electronics engineers frequently balance two essential requirements: absolute low-ripple signal integrity versus power density and high-efficiency thermal management.
Our OEM/ODM manufacturing capability encompasses both dominant architectures, tailored precisely for system integrators and laboratory procurement managers across France:
Characterized by exceptionally low output ripple and ultra-low electrical noise (< 1 mV RMS). Essential for sensitive RF transceivers, low-noise amplifiers (LNAs), and optical sensor validation where high-frequency switching EMI could corrupt testing metrics.
Engineered for high power efficiency (> 92%) and compact footprint. Capable of sourcing tens of kilowatts across wide current ranges (0–1000A) for burn-in testing, battery pack cycling, and electroplating lines throughout the Provence-Alpes-Côte d'Azur region.
Combines a fast switching pre-regulator with a precision linear post-regulator stage, providing researchers with the agility of high-current bursts paired with micro-volt steady-state stability, SCPI script control, and digital telemetry via RS485/Modbus/Ethernet.
| Architecture Class | Typical Voltage / Current Matrix | Ripple & Noise Density | Primary Industrial Sector (Nice Market) | OEM/ODM Customization Scope |
|---|---|---|---|---|
| Precision Linear Lab Bench | 0–30V, 0–50V / 0–5A, 0–10A | < 0.5 mV RMS / < 2 mVp-p | Telecom R&D, RF IC Prototyping (Sophia Antipolis) | Custom front panel, programmable ramping, dual isolation |
| Micro-Step Switching SMPS | 0–600V / 0–100A (Up to 15 kW) | < 15 mV RMS | Aerospace Subassemblies & Radar Simulators | 19-inch 2U/3U rack enclosures, CANopen/Modbus firmware |
| Galvanic Isolated DC Modules | 48V/72V/96V to 12V/24V (30W–1500W) | < 30 mVp-p | Commercial Marine, Luxury Yachts (Port Lympia) | IP67/IP68 aluminum potting, marine vibration shock damping |
| High-Current Plating Rectifiers | 12V–48V / 50A–1000A Continuous | < 1% Full Span | Electrochemical Anodizing & Surface Metallurgy | Thyristor/IGBT power bridges, remote analog 4-20mA control |
How factory-direct power supply hardware drives high-reliability infrastructure, smart city testbeds, and maritime integration in southeastern France.
Europe's leading science and technology park requires rigorous automated testing equipment (ATE). Our programmable DC supplies simulate voltage sags, brownouts, and peak transient loads, allowing microelectronics engineers to characterize low-power edge compute units and LoRa/5G transceivers under extreme input variations.
Centered around Port Lympia, Antibes, and Cannes, marine electrical contractors deal with corrosive salt fog, high humidity, and extreme vibration. Our fully encapsulated, IP67 waterproof buck converters and isolated transformers provide safe step-down from 24V/48V vessel buses to sensitive 12V NMEA navigation networks and satellite terminals.
With Métropole Nice Côte d'Azur investing heavily in electric tramways, electric port cranes, and battery-electric bus lines, high-voltage isolated step-down converters (48V–96V down to 12V/24V) provide rock-solid auxiliary power to onboard telematics, ticketing validators, and emergency safety nodes.
Procurement criteria among engineering leaders in Nice have progressed far beyond mere price per watt. In compliance with European decarbonization directives and rigorous research requirements, several critical technological shifts are currently directing B2B transactions:
Gallium Nitride (GaN) and Silicon Carbide (SiC) power switching stages are rapidly superseding legacy silicon MOSFETs. In benchtop power supplies, this enables 40% reductions in enclosure volume and dramatically decreased thermal dissipation, crucial for compact laboratory spaces in European research incubators.
Engineering workflows in France increasingly demand remote scripting capabilities. Bench supplies must incorporate open SCPI (Standard Commands for Programmable Instruments) protocols via USB, LAN/LXI, and RS485 interfaces, allowing multi-unit orchestration in Python and LabVIEW test environments.
French regulatory frameworks demand adherence to strict energy efficiency curves during standby and active operation. European enterprises prioritize power architectures that demonstrate long mean-time-between-failures (MTBF > 100,000 hrs) and modular reparability to minimize electronic waste.
Operating from our 1,229 m² facility verified on-site by SGS Group, every bench supply, inverter, and converter is engineered, assembled, and tested within our proprietary production lines.
Every batch produced undergoes 100% incoming QC (IQC), in-process testing (IPQC), and pre-shipment aging under ambient temperatures up to 50°C. Complete declaration of conformity (DoC) and EMC test dossiers accompany every consignment.
We deliver sample-based, design-based, and full-turnkey customization. Whether modifying input voltage spans, output power configurations, housing enclosures, silkscreen branding, or custom software telemetry, our R&D team completes prototype iterations rapidly.
Seamless export operations supporting DDP (Delivered Duty Paid), FOB, and CIF terms to Nice Côte d’Azur Airport and Fos-sur-Mer container port. We handle customs declarations, hazardous material battery safety sheets, and EUR.1 documentation seamlessly.
Essential technical and logistical answers for French procurement officers, laboratory managers, and project engineers.
Collaborate directly with our power electronics engineering team. We supply verified performance data, CAD step files, CE documentation, and responsive OEM/ODM quotes customized to your exact input/output parameters.